This is a trick that may help, do nothing, or make youtube videos load slower then they already do. (The effect only applies to the current URL, so it won't mess everything up if it does end up loading slower.)

1. Click on the video you wish to view.2. In the address bar (Where you type in URLs) replace the 'www' (right at the beginning) with ca.2a. For example: You change www.youtube.com/watch?v=nVP3vLUh0_k to ca.youtube.com/watch?v=nVP3vLUh0_k3. Enter it in and see if it it helps.(You'll know that you typed it in right if you see CA somewhere in the address bar once you enter it in. Ex. ww.youtube.com/watch?v=nVP3vLUh0_k&gl=CA

I hope this helped. It's helped me on occasion, youtube is (from what I've heard) been having some issues and is loading extremely slow. Lets hope they fix this issue up instead of making an unnecessary change to the layout again.